... engagemenl of few in- dividuals and the help - or better first aid - by the DTHG finally led to a result which was honoured with a gold medal. ... The modern very complex technical equipment for cultural venues require a professional care. ... Plusieurs entreprises, Consultants et constructeurs ont participe Ac la renovation decrite par la suite. ... proposes a compromise Solution between expen- sive mechanic fly Systems and manual dounterweigt flies which require much force and time.